About LD Atlas
LD Atlas allows you to communicate via Bluetooth or WiFi with Larson Davis Spartan Noise Dosimeters - Models 730 and 730IS, Human Vibration Meters - Model HVM200, Spartan 821/721, and SoundExpert 821/721. You can view...
LD Atlas allows you to communicate via Bluetooth or WiFi with Larson Davis Spartan Noise Dosimeters - Models 730 and 730IS, Human Vibration Meters - Model HVM200, Spartan 821/721, and SoundExpert 821/721. You can view meter status, calibrate meters, make measurements, review measurement data, create and view PDF reports, and analyze data. Due to restrictions introduced in iOS, this version of Atlas does not support the 831C. Please contact support for alternatives or assistance.
Version History • Fixed missing PDF attachments in 721/821 report emails. • Fixed meter file list checkboxes for selecting files to download/delete. • Fixed repeated untrusted SSL certificate prompts when connecting to 831C meters. 1.804.87 May 22 • Fixed missing PDF attachments in 721/821 report emails. • Fixed meter file list checkboxes for selecting files to download/delete. • Fixed repeated untrusted SSL certificate prompts when connecting to 831C meters. 1.803.0 May 12 Includes features released wtih G4 version 5.5.0, including support for back-erase, OBA spectrograph time slice, improved report PDFs, improved AudCal test report and certificates, and many other improvements. 1.703.81 Apr 3 Updating with the new features and fixes released in G4 up through version 5.3.5. 1.701 09/08/2025 Added the ability to customize the report to display or hide specific metrics or metric sections. A column of checkboxes on the right side of the report allows users to select individual metrics or metric sections. These selections can be saved in the meter’s settings or exported to a settings file for use with other meters. The report may be customized in a file view or in a template within the meter’s settings view. 1.511 08/13/2024 • Information entered into the 'General Info' fields in the report view is now properly stored in the file and will persist when the file is opened again. • Markers entered while the meter is running are now properly inserted into the Time History graph. • PDF reports in character-based languages (Thai, Korean, etc.) now display correctly. 1.401 05/31/2024 • Added support for Spartan 821/721 and SoundExpert 821/721 meters. • When adding a meter to Atlas by IP address or host, Atlas now checks if the address/host has already been used, to prevent issues caused by having two meter entries with the same IP address. Other minor validation checks were also added. • Many improvements to graphs, spreadsheet and reports. 1.400 05/02/2024 Fixes for several minor issues, including for 730 and 730IS disabling the Calibration "Accept" button until the calibration is stable. Updated AudCal audiometer calibration system with additional standards, including ANSI S3.6 (2018) and ANSI S3.6 (1989). Added booth test standard to test in compliance with New Zealand document, "Assessment of occupational noise-induced hearing loss for ACC", page 25. Added support for Canada standard to the 730 and 730IS. Please refer to the Release Notes in G4 for details regarding these standards additions. 1.289 03/29/2023 Supports addition of Room Acoustics mode to 831C. Updated and improved Spartan 730 screen layouts. Updated to support latest 730 features. Added full-page FFT live screen. Fixed miscellaneous issues. 1.260 05/26/2022 Improved Language support and PDF generation with non-Latin based languages 831C FFT Support added Show Only Active Meters mode available Device Panel connection improvements Misc. Bug fixes 1.202 03/08/2021 Full AudCal report support in LD Atlas Import logo feature added to Spartan PDF reports 831C Security, SSL, and scheduling support New Live Leq Graph for Spartan Calibration Level now shows on Spartan reports 1 minute time history support for Spartan Finnish language support added Link to manuals and support added to settings page Updated File manager view for Spartan, with searching of files TCP connection improvements for 831C / HVM200 in Device Panel view Improved Swiping for 831C live view New support for 730IS model Misc. Bug fixes 1.110 06/17/2020 831C Security, SSL, and scheduling support New Live Leq Graph for Spartan Calibration Level now shows on Spartan reports 1 minute time history support for Spartan Finnish language support added Link to manuals and support added to settings page Updated File manager view for Spartan, with searching of files TCP connection improvements for 831C / HVM200 in Device Panel view Improved Swiping for 831C live view New support for 730IS model Misc. Bug fixes 1.100 06/04/2020 Fixed issue with entering and displaying multi-line notes during Spartan measurements Disabled Spartan settings are darker and easier to distinguish from enabled settings Fixed display problem with Lpeak value when switching virtual dosimeter mode from Dose to ISO Add General Info now saves with archive file properly prior to being sent with email Sorting hidden meter list by serial number 1.031 08/15/2019 Support for Spartan 730 Admin Passcode, allowing Settings, Tools, and Deleting files to be restricted without entering the passcode. Expanded Spartan 730 minimum criterion and threshold levels from 70 dB to 55 dB Edit name box improvements on initial device view. Added ability to access AudCal view for 831C Improvements for Spartan file list reliability on first access. Improved transitions between meters visible and not visible for UDP and TCP connections when switching WiFi networks Misc. Bug fixes 1.020 07/16/2019 1.000 06/05/2019
Previous Versions
Here you can find the changelog of LD Atlas since it was posted on our website on 2023-09-25 11:05:37.
The latest version is 1.804.87 and it was updated on 2026-06-10 06:26:40. See below the changes in each version.
LD Atlas version 1.804.87
Updated At: 2026-06-10
Changes: Version History • Fixed missing PDF attachments in 721/821 report emails.
• Fixed meter file list checkboxes for selecting files to download/delete.
• Fixed repeated untrusted SSL certificate prompts when connecting to 831C meters. 1.804.87 May 22 • Fixed missing PDF attachments in 721/821 report emails.
• Fixed meter file list checkboxes for selecting files to download/delete.
• Fixed repeated untrusted SSL certificate prompts when connecting to 831C meters. 1.803.0 May 12 Includes features released wtih G4 version 5.5.0, including support for back-erase, OBA spectrograph time slice, improved report PDFs, improved AudCal test report and certificates, and many other improvements. 1.703.81 Apr 3 Updating with the new features and fixes released in G4 up through version 5.3.5. 1.701 09/08/2025 Added the ability to customize the report to display or hide specific metrics or metric sections. A column of checkboxes on the right side of the report allows users to select individual metrics or metric sections. These selections can be saved in the meter’s settings or exported to a settings file for use with other meters. The report may be customized in a file view or in a template within the meter’s settings view. 1.511 08/13/2024 • Information entered into the 'General Info' fields in the report view is now properly stored in the file and will persist when the file is opened again.
• Markers entered while the meter is running are now properly inserted into the Time History graph.
• PDF reports in character-based languages (Thai, Korean, etc.) now display correctly. 1.401 05/31/2024 • Added support for Spartan 821/721 and SoundExpert 821/721 meters.
• When adding a meter to Atlas by IP address or host, Atlas now checks if the address/host has already been used, to prevent issues caused by having two meter entries with the same IP address. Other minor validation checks were also added.
• Many improvements to graphs, spreadsheet and reports. 1.400 05/02/2024 Fixes for several minor issues, including for 730 and 730IS disabling the Calibration "Accept" button until the calibration is stable.
Updated AudCal audiometer calibration system with additional standards, including ANSI S3.6 (2018) and ANSI S3.6 (1989). Added booth test standard to test in compliance with New Zealand document, "Assessment of occupational noise-induced hearing loss for ACC", page 25. Added support for Canada standard to the 730 and 730IS.
Please refer to the Release Notes in G4 for details regarding these standards additions. 1.289 03/29/2023 Supports addition of Room Acoustics mode to 831C.
Updated and improved Spartan 730 screen layouts.
Updated to support latest 730 features.
Added full-page FFT live screen.
Fixed miscellaneous issues. 1.260 05/26/2022 Improved Language support and PDF generation with non-Latin based languages
831C FFT Support added
Show Only Active Meters mode available
Device Panel connection improvements
Misc. Bug fixes 1.202 03/08/2021 Full AudCal report support in LD Atlas
Import logo feature added to Spartan PDF reports
831C Security, SSL, and scheduling support
New Live Leq Graph for Spartan
Calibration Level now shows on Spartan reports
1 minute time history support for Spartan
Finnish language support added
Link to manuals and support added to settings page
Updated File manager view for Spartan, with searching of files
TCP connection improvements for 831C / HVM200 in Device Panel view
Improved Swiping for 831C live view
New support for 730IS model
Misc. Bug fixes 1.110 06/17/2020 831C Security, SSL, and scheduling support
New Live Leq Graph for Spartan
Calibration Level now shows on Spartan reports
1 minute time history support for Spartan
Finnish language support added
Link to manuals and support added to settings page
Updated File manager view for Spartan, with searching of files
TCP connection improvements for 831C / HVM200 in Device Panel view
Improved Swiping for 831C live view
New support for 730IS model
Misc. Bug fixes 1.100 06/04/2020 Fixed issue with entering and displaying multi-line notes during Spartan measurements
Disabled Spartan settings are darker and easier to distinguish from enabled settings
Fixed display problem with Lpeak value when switching virtual dosimeter mode from Dose to ISO
Add General Info now saves with archive file properly prior to being sent with email
Sorting hidden meter list by serial number 1.031 08/15/2019 Support for Spartan 730 Admin Passcode, allowing Settings, Tools, and Deleting files to be restricted without entering the passcode.
Expanded Spartan 730 minimum criterion and threshold levels from 70 dB to 55 dB
Edit name box improvements on initial device view.
Added ability to access AudCal view for 831C
Improvements for Spartan file list reliability on first access.
Improved transitions between meters visible and not visible for UDP and TCP connections when switching WiFi networks
Misc. Bug fixes 1.020 07/16/2019 1.000 06/05/2019
LD Atlas version 1.701
Updated At: 2025-09-08
Changes: Updating with the new features and fixes released in G4 up through version 5.3.5.
LD Atlas version 1.701
Updated At: 2025-09-08
Changes: Sep 8, 2025
Version 1.701
Updating with the new features and fixes released in G4 up through version 5.3.5.
LD Atlas version 1.511
Updated At: 2024-08-13
Changes: Aug 13, 2024
Version 1.511
Added the ability to customize the report to display or hide specific metrics or metric sections. A column of checkboxes on the right side of the report allows users to select individual metrics or metric sections. These selections can be saved in the meter’s settings or exported to a settings file for use with other meters. The report may be customized in a file view or in a template within the meter’s settings view.
LD Atlas version 1.401
Updated At: 2024-05-31
Changes: May 31, 2024
Version 1.401
• Information entered into the 'General Info' fields in the report view is now properly stored in the file and will persist when the file is opened again.
• Markers entered while the meter is running are now properly inserted into the Time History graph.
• PDF reports in character-based languages (Thai, Korean, etc.) now display correctly.
LD Atlas version 1.400
Updated At: 2024-05-02
Changes: May 2, 2024
Version 1.400
• Added support for Spartan 821/721 and SoundExpert 821/721 meters.
• When adding a meter to Atlas by IP address or host, Atlas now checks if the address/host has already been used, to prevent issues caused by having two meter entries with the same IP address. Other minor validation checks were also added.
• Many improvements to graphs, spreadsheet and reports.
LD Atlas version 1.289
Updated At: 2023-03-29
Changes: Mar 29, 2023
Version 1.289
Fixes for several minor issues, including for 730 and 730IS disabling the Calibration "Accept" button until the calibration is stable.
Updated AudCal audiometer calibration system with additional standards, including ANSI S3.6 (2018) and ANSI S3.6 (1989). Added booth test standard to test in compliance with New Zealand document, "Assessment of occupational noise-induced hearing loss for ACC", page 25. Added support for Canada standard to the 730 and 730IS.
Please refer to the Release Notes in G4 for details regarding these standards additions.
Disclaimer
Official App Store Link
We do not host LD Atlas on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
The App Store link for LD Atlas is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.
